CA2402134C - Dispositif de securite variables du point de vue optique - Google Patents

Dispositif de securite variables du point de vue optique Download PDF

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Publication number
CA2402134C
CA2402134C CA002402134A CA2402134A CA2402134C CA 2402134 C CA2402134 C CA 2402134C CA 002402134 A CA002402134 A CA 002402134A CA 2402134 A CA2402134 A CA 2402134A CA 2402134 C CA2402134 C CA 2402134C
Authority
CA
Canada
Prior art keywords
layer
thin film
relief structure
film reflection
relief
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CA002402134A
Other languages
English (en)
Other versions
CA2402134A1 (fr
Inventor
Ralph Kay
Brian William Holmes
Kenneth John Drinkwater
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
De la Rue International Ltd
Original Assignee
De la Rue International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9894605&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=CA2402134(C) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by De la Rue International Ltd filed Critical De la Rue International Ltd
Publication of CA2402134A1 publication Critical patent/CA2402134A1/fr
Application granted granted Critical
Publication of CA2402134C publication Critical patent/CA2402134C/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/324—Reliefs
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/0252—Laminate comprising a hologram layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B42D2035/24—
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/0005—Adaptation of holography to specific applications
    • G03H1/0011—Adaptation of holography to specific applications for security or authentication
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/024—Hologram nature or properties
    • G03H1/0244—Surface relief holograms
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/18—Particular processing of hologram record carriers, e.g. for obtaining blazed holograms
    • G03H2001/187—Trimming process, i.e. macroscopically patterning the hologram
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/04—Processes or apparatus for producing holograms
    • G03H1/18—Particular processing of hologram record carriers, e.g. for obtaining blazed holograms
    • G03H2001/187—Trimming process, i.e. macroscopically patterning the hologram
    • G03H2001/188—Demetallisation, i.e. removing the enhancing metallic layer
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00—Laminate comprising a hologram layer
    • G03H2250/12—Special arrangement of layers
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00—Laminate comprising a hologram layer
    • G03H2250/36—Conform enhancement layer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Holo Graphy (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Credit Cards Or The Like (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
CA002402134A 2000-06-28 2001-06-27 Dispositif de securite variables du point de vue optique Expired - Lifetime CA2402134C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0015873.3 2000-06-28
GBGB0015873.3A GB0015873D0 (en) 2000-06-28 2000-06-28 Optically variable security device
PCT/GB2001/002902 WO2002000445A1 (fr) 2000-06-28 2001-06-27 Dispositif de sécurité variables du point de vue optique

Publications (2)

Publication Number Publication Date
CA2402134A1 CA2402134A1 (fr) 2002-01-03
CA2402134C true CA2402134C (fr) 2006-10-03

Family

ID=9894605

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002402134A Expired - Lifetime CA2402134C (fr) 2000-06-28 2001-06-27 Dispositif de securite variables du point de vue optique

Country Status (7)

Country Link
US (1) US7054042B2 (fr)
EP (2) EP1294575B1 (fr)
AU (1) AU2001266209A1 (fr)
CA (1) CA2402134C (fr)
CZ (1) CZ299338B6 (fr)
GB (1) GB0015873D0 (fr)
WO (1) WO2002000445A1 (fr)

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EP1294575A1 (fr) 2003-03-26
EP1294575B1 (fr) 2016-10-26
GB0015873D0 (en) 2000-08-23
WO2002000445A1 (fr) 2002-01-03
EP2390106A2 (fr) 2011-11-30
CZ299338B6 (cs) 2008-06-25
AU2001266209A1 (en) 2002-01-08
US20030058491A1 (en) 2003-03-27
CZ20024211A3 (cs) 2003-06-18
EP2390106B1 (fr) 2018-01-17
US7054042B2 (en) 2006-05-30
CA2402134A1 (fr) 2002-01-03
EP2390106A3 (fr) 2011-12-21

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